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798 AC Electric Drive Mining Truck
775 Off-Highway Truck

Weights - Approximate

Nominal Rated Payload 410 ton (US) - -
Rated Gross Machine Weight 1375000 lb - -
Chassis Weight 453826 lb - -
Body Weight Range 38 833 - 43 275 kg (85,611 - 95,406 lb) - -
Note (1) Consult your tire manufacturer for maximum tire load. - -
Note (2) Chassis weight with 100% fuel, hoist, body mounting group, rims, and tires. - -
Note (3) Body weight varies depending on how body is equipped. - -
Maximum Gross Vehicle Weight - 246503 lb -

Engine

Gross Power - SAE J1995 3500 HP 825 HP -
Engine Model Cat® C175-16 Cat® C27 -
Net Power - SAE J1349 3405 HP 768 HP -
Optional Gross Power - SAE J1995 3100 HP - -
Rated Speed 1800 r/min - -
Emissions Rating Fuel Optimized - -
Bore 6.9 in 5.4 in -
Stroke 8.7 in 6 in -
Displacement 5187 in³ 1648 in³ -
Note (1) Net Power advertised is the power available at the flywheel when the engine is equipped with air intake system, exhaust system, and alternator. Power rating applies at 2,000 rpm when tested under the specified condition for the specified standard. -
Note (2) U.S. EPA Tier 4 Final / EU Stage V available for applicable markets. Ratings based on SAE J1995 standard air conditions of 25° C (77° F) and 100 kPa (29.61 Hg) barometer. Power based on fuel having API gravity of 35 at 16° C (60° F) and an LHV of 42 780 kJ/kg (18,390 BTU/lb) when engine used at 30° C (86° F). -
Note (3) Additional fuel optimized selectable power ratings: 2312 kW / 3,100 hp No engine derating required up to 3810 m (12,500 ft) for Tier 2 Equivalent. -
Rated Engine Speed - 1800 r/min -
Net Power - 80/1269/EEC - 775 HP -
Net Power - ISO 9249 - 775 HP -
Engine Power - ISO 14396 - 812 HP -
Net Torque - 3148 ft-lb -
Peak Torque - Speed - 1200 r/min -
Emissions - Meets EU Stage V emission standards. -

Service Refill Capacities - High Altitude Only

Fuel Tank 2000 gal (US) - -
Cooling System 273 gal (US) - -
Crankcase 124 gal (US) - -
Hydraulic Tank 273 gal (US) - -
Hydraulic System (includes tank) 342 gal (US) - -

Service Refill Capacities

Fuel Tank 1300 gal (US) 210 gal (US) -
Fuel Tank (Tier 4) 1200 gal (US) - -
Diesel Exhaust Fluid Tank 100 gal (US) - -
Cooling System 211 gal (US) 45 gal (US) -
Crankcase 82 gal (US) 24 gal (US) -
Final Drive - Each 67 gal (US) - -
Hydraulic System - Including Tank 385 gal (US) - -
Hydraulic Tank 296 gal (US) - -
Grease Tank 90 lb - -
Note (1) DEF Tank only available for U.S. EPA Tier 4 Final / EU Stage V engine option - -
Differential - Final Drives - 38 gal (US) -
Steering Tank - 9.5 gal (US) -
Steering System - Including Tank - 14 gal (US) -
Brake Hoist System - 85 gal (US) -
Torque Converter - Transmission System - LRC - 16 gal (US) -
Brake/Hoist Hydraulic Tank - 46.5 gal (US) -
Torque Converter - Transmission System - HRC - 18 gal (US) -

Steering

Steer Angle 39 ° 31 ° -
Turning Diameter - Front 106.3 ft 77.1 ft -
Steering Standards Steering Standards: ISO 5010:2007 ISO 5010:2007 -
Note Turning Diameter (ISO 7457:1997) - -
Turning Circle - Clearance Diameter - 85.6 ft -

AC Drive System

Total Reduction Ratio 35:01:00 - -
Top Speed - Loaded 40 mile/h - -
Generator/Alternator Brushless, engine mounted, dual bearing - -
Controls IGBT Inverter Technology, air cooled, pressurized cabinet with filtration - -
Wheel Motor Cat high-torque AC induction, rear axle mounted - -
Cooling System Cat variable speed, hydraulically driven cooling system - -

Braking System

Service Brakes Four-Corner, Wet Disc, Oil Cooled, Hydraulically Actuated - -
Front Wet Disc Brake Surface Area 22642 in² - -
Rear - Wet Disc Brake Surface Area 32730 in² - -
Standards Service and Secondary: ISO 3450:2011 - -
Electric Retarding Radial Grid Design - -
Dynamic Retarding Power - Continuous 5480 HP - -
Parking Brakes Four-corner, Multi-disc, Spring Applied, Hydraulically Released - -
Load Brake Rear service brakes - -
Note Anti-Lock Brake System (ABS) optional with CMD package - -

Weight Distributions - Approximate

Front Axle - Empty 47 % 50 % -
Rear Axle - Empty 53 % 50 % -
Front Axle - Loaded 33 % 34 % -
Rear Axle - Loaded 67 % 66 % -
Note Weight distributions optimized with Cat body. - -

Capacity - HE Body - 100% fill factor

Struck 129-200 m³ (168-261 yd³) - -
Heaped (SAE 2:1) 218-276 m³ (285-361 yd³) - -
Note Contact your local Cat dealer for body recommendations. - -

Body Hoists

Type Twin, two-stage hydraulic cylinders with snubbing valve. - -
Pump Flow - High Idle 257.3 gal/min 118 gal/min -
Relief Valve Setting - Raise 3029 psi 2502 psi -
Body Raise Time - High Idle 21 s 10 s -
Body Lower Time - Float 22 s 14 s -
Body Power Down- High Idle 17.5 s - -
Note (1) Twin, two-stage hydraulic cylinders mounted outside main frame; double-acting cylinders in both stages. - -
Note (2) Power raise in both stages; power down capability in both stages. - -
Note (3) Automatic body-lower modulation reduces impact on frame. - -
Relief Valve Setting - Lower - 500 psi -
Body Power Down - High Idle - 14 s -

Suspension

Type Self-contained nitrogen/oil cylinders, pin-to-pin mounting, top & bottom double shear clevis attachments - -
Effective Cylinder Stroke - Front 10 in - -
Effective Cylinder Stroke - Rear 5 in - -
Empty Loaded Cylinder Stroke Front - 9.2 in -
Rear axle - Oscillation - 8.1° -
Empty Loaded Cylinder Stroke Rear - 5.8 in -

Cab

Air Conditioning HFC - 134A refrigerant: 21,600 Btu/h - -
Heater / Defroster 24600 Btu/h - -
Note Ambient capabilities down to -15C (5F) for heater/defroster and up to 50C (122F) for air conditioning. - -
ROPS Standards (1) ROPS (Rollover Protective Structure) meets ISO 3471:2008 for Operator and ISO 13459:2012 for Trainer. - -
FOPS Standards FOPS (Falling Objects Protective Structure) meets ISO 3449:2005 Level II for Operator and ISO 13459:2012 Level II for Trainer. - -

Engine - High Altitude Only

Engine Model Cat® C175-20 - -
Gross Power SAE J1995:2014 4150 HP - -
Net Power - SAE J1349:2011 4000 HP - -
Rated Speed 1750 r/min - -
Emissions Rating Fuel Optimized - -
Bore 6.9 in - -
Stroke 8.7 in - -
Displacement 6469 in³ - -
Note 1 Net Power advertised is the power available at the flywheel when the engine is equipped with air intake system, exhaust system, and alternator. - -
Note 2 Additional fuel optimized selectable power rating: 2983 kW / 4,000 hp - -

Tires

Rims 44" x 63" Rims - -
Standard Tires 59/80 R63 - -
Note (1) Quick Change Rims optional. Productive capabilities of the 775G truck are such that, under certain job conditions, TKPH (TMPH) capabilities of standard or optional tires could be exceeded and, therefore, limit production. -
Note (2) Caterpillar recommends the customer evaluate all job conditions and consult tire manufacturer for proper tire selection and TKPH (TMPH) capabilities. Caterpillar recommends the customer evaluate all job conditions and consult the tire manufacturer for proper tire selection. -
Standard Tire - 24.00R35 (E4) -

Dimensions (Approximate)

Height - Top of ROPS 22.1 ft - -
Overall Length 51.44 ft - -
Wheel Base 21.9 ft - -
Rear Axle - Tail 16.07 ft - -
Dump Clearance - Empty 5.72 ft - -
Loading Height - Empty 25.54 ft - -
Overall Height - Body Raised 48.85 ft - -
Centerline Front Tire Width 23.06 ft - -
Front Axle Clearance - Loaded 2.81 ft - -
Overall Canopy Width (with rock deflectors) 33.15 ft - -
Outside Body/Canopy Width (without rock deflectors) 31.62 ft - -
Inside Body Width 29.44 ft - -
Front Canopy Height - Empty 26.01 ft - -
Rear Axle Clearance - Loaded 2.8 ft - -
Centerline of Rear Dual Tire Width 19.5 ft - -
Overall Tire Width - Empty 30.27 ft - -
Overall Length (High Altitude only) 51.87 ft - -
Note Dimensions listed includes canopy deflectors - -

Sound

Sound Standards The operator sound pressure level, 75 dB(A), measured according to ISO 6394:2008 and ISO 6396:2008. - -
Sound Standards (1) - The operator Equivalent Sound Pressure Level (Leq) is 76 dB(A) when SAE J1166 FEB2008 is used to measure the value for an enclosed cab. This is a work cycle sound exposure level. The cab was properly installed and maintained. The test was conducted with t -
Sound Standards (2) - The exterior sound pressure level for the standard machine measured at a distance of 15 m (49 ft) according to the test procedures specified in SAE J88:2008, mid‑gear moving operation is 86 dB(A). -
Sound Standards (3) - Hearing protection may be needed when operating with an open operator station and cab (when not properly maintained or doors/windows open) for extended periods or in a noisy environment. -

Operating Specifications

Nominal Payload Class (100%) - 70.5 ton (US) -
Top Speed - Loaded - 41.6 mile/h -
Maximum Working Payload (110%) - 77.5 ton (US) -
Target Payload (100%) - 70.5 ton (US) -
Maximum Allowable Payload (120%)* - 84.6 ton (US) -
Note (2) - * Refer to the Caterpillar 10/10/20 Payload Policy for maximum gross machine weight limitations. -
Note (1) - Capacity with Dual Slope body – no liner. -
Body Capacity - SAE 2:1 - 55.23 yd³ -

Capacity - Dual Slope - 100% Fill Factor

Struck - 42.7 yd³ -
Heaped (SAE 2:1)* - 55.5 yd³ -
Note (1) - Contact your local Cat dealer for body recommendation. -
Note (2) - *ISO 6483:1980 -

Capacity - Flat Floor - 100% Fill Factor

Struck - 42.2 yd³ -
Heaped (SAE 2:1)* - 55.2 yd³ -
Note (1) - Contact your local Cat dealer for body recommendation. -
Note (2) - *ISO 6483:1980 -

Transmission

Forward - 1 - 6.6 mile/h -
Forward - 2 - 9.3 mile/h -
Forward - 3 - 12.6 mile/h -
Forward - 4 - 16.8 mile/h -
Forward - 5 - 22.8 mile/h -
Forward - 6 - 30.7 mile/h -
Forward - 7 - 41.6 mile/h -
Reverse - 8.7 mile/h -
Note - Maximum travel speeds with standard 24.00R35 (E4) tires. -

Final Drives

Differential Ratio - 3.64:1 -
Planetary Ratio - 4.80:1 -
Total Reduction Ratio - 17.49:1 -

Brakes

Brake Surface - Front - 257 in² -
Brake Surface - Rear - 9497 in² -
Brake Standards - ISO 3450:2011 -

ROPS

FOPS Standards - Falling Objects Protective Structure (FOPS) meets ISO 3449:2005 Level II FOPS criteria. -
ROPS Standards - Rollover Protective Structure (ROPS) for cab offered by Caterpillar meets ISO 3471:2008 ROPS criteria. -

Sustainability

Recyclability - 98% -
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